import base64


def f1():
    s = "90 74 83 69 67 97 78 72 51 110 103"
    s = s.split(" ")
    string = ""
    for char in s:
        string += chr(int(char))
    print(string)


def f2():
    s = list("3CEHJNSZagn")
    flag = [None for i in range(8)]
    flag[0] = chr(ord(s[0]) + 34)
    flag[1] = s[4]
    flag[2] = chr((3 * ord(s[2]) + 141) // 4)
    flag[3] = chr(8 * (ord(s[7]) // 9))
    s1 = base64.b64decode(b"ak1w")
    for i in range(5, 8):
        flag[i] = chr(s1[i - 5])
    s2 = base64.b64decode(b"V1Ax")
    for i in range(2, 5):
        flag[i] = chr(s2[i - 2])
    print("".join(flag))


if __name__ == "__main__":
    f2()
